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Liquid crystal display driving system and liquid crystal display driving method

A liquid crystal display and driving system technology, applied in static indicators, instruments, etc., can solve the problems of poor display effect, brighter brightness, and uneven brightness of the liquid crystal display panel, and achieve the effect of avoiding uneven display brightness

Active Publication Date: 2017-11-17
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the difference in brightness in areas with low grayscale (for example, below grayscale 10) is very obvious. When the moiré phenomenon is serious, the compensation value used is relatively large. In this case, the deviation is not easy to control, resulting in a grayscale The brightness of the compensated area is brighter or darker, and the brightness is uneven, forming a clear boundary line, which makes the display effect of the LCD panel worse

Method used

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  • Liquid crystal display driving system and liquid crystal display driving method

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] see figure 1 , figure 1 It is a schematic circuit diagram of the liquid crystal display driving system in the first embodiment of the present invention. In the first embodiment of the present invention, the liquid crystal display drive system includes a timing controller 100 and a memory storage 200, the timing controller 100 is connected to the memory storage 200, and the timing controller 100 is used to read the The gray scale compensation value in ...

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Abstract

The invention discloses a liquid crystal display driving system, which includes a timing controller and a memory. The initial gray-scale value obtains the corrected gray-scale value, the timing controller includes a gray-scale detection circuit and a gray-scale compensation operation circuit, and the gray-scale detection circuit is used to detect the initial gray-scale value from the host system Whether it is less than or equal to a fixed value, when the initial gray scale value is less than or equal to the fixed value, the timing controller uses the initial gray scale value as the corrected gray scale value. The liquid crystal display drive system can avoid the phenomenon of non-uniform display brightness caused by the low gray scale compensation of the liquid crystal display panel. The invention also discloses a liquid crystal display driving method.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a liquid crystal display driving system and a liquid crystal display driving method. Background technique [0002] Liquid crystal display panels are playing an increasingly important role in today's life, and a complex display driving system is required for the liquid crystal display panel to realize its display function. Since the manufacturing process of the liquid crystal display panel is relatively complicated, some flaws in the process may easily lead to uneven display brightness of the produced liquid crystal display panel, forming various moiré patterns (Mura), and affecting the display effect of the liquid crystal display panel. In order to improve the brightness uniformity of the liquid crystal display panel, the method of grayscale value compensation is currently used. For example, in the surrounding area of ​​the liquid crystal display panel, a high-resolution cam...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
Inventor 张华
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD